Transfer Routes from Zumo 550 to 660

Is it possible to transfer routes fro m my Zumo 550 to a 660 without going through a computer ? When you load a route into the 550 it gives you some potions, one of them is "share". I tried this to see what happened it said it sent the route to my SD card. Would I have to get an adaptor from micro SD to SD and put the 660 card in my 550 and do it that way or is there a better way ?